Check the listing for details. Multi-function 21.5" LED Display MICRO Chart Projector Eye Chart 1m-6m Optometry. Condition: New. Listed at 418.00 USD. Multi-function 21.5" LED Display MICRO Chart Projector Eye Chart 1m-6m OptometryFunctional characteristics: *Super thin and light design, high definition scheme, the professional digital picture processing technology, fast switching, easy to operate.*Measure accuracy with the distance from 1.0m to 6.0m and the smallest step 0.1m*Offering single display function, which includes eight rows and three lines charts.*Offering fully charts, which includes the total forty-five charts, international C word, International E word, Children.*Figures, Astigmatism, Binocular balance and so on.*Sitting type installation&wall-hung type installation both available, which enable the installation convenient and maintenance easy.*High resolution LCD screen and small dot pitch(0.248mm)adopted, which ensure the clear image seen. Technical specifications: NumberSize21.5 IN 1Model2152Input power parametersAC100V-240V/20HZ/60HZ3Standard power consumption60W4Standby power consumption< 2W5Maximum screen resolution1920*10806Screen typeLED 7Screen ratio16：98Appearance size 540*405*44mm9Color16.7M colors10Total WeightAbout 6kg11Use distance1-6m12Vision recording methodDecimal and imperial fraction recording method13Remote control distanceMaximum remote control distance 8m Standard Measuring Charts： ●Letters Eye chart●Children Eye chart●Number Eye chart●TumblingE Eye chart●LandoltC Eye chart●Red-green Blindness●Contrastsensitivity●Red/Green●Worth For Dot●Minute Stereo●Schober●Cross●Fixation●Crossgrid●Beehive●Astigmatic Clock DialMasking：●Horizontalline●Verticalline●Singleletter Notice: 1.Battery is not included,which is forbid to ship!!!2.The remote is English language,in my photo,it is detail translate of remote.You can press the yellow "OK"button,you can see the language,turn to English language,it is support!Pls notice it before you buy it.3.You can refer to my description photo!Very clear!NOTE: 1.lmport duties, taxes and charges are not included in the item price and the freight. These charges are the buyer's responsibility. 2.Please check with your country's customs to determine what these additional costs will be prior to bidding/buying. 3.Please leave your valid phone number when you make order, otherwise we can't guarantee the package would arrive smoothly. RETURN 1.Return accepted in 30 days after you receive the item. The buyer need to affordthe return postage fee who also need to return it to our designated place. 2.Return package must be in the original packaging, item must be in new condition.Missing parts or any damaged by the buyer will not give any return. 3.Within warranty period, all repair parts will be free, but the buyer need to pay for the freight.